25505

Appears in sequences

• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 6.at n=53A136888
• Numbers k such that k and k^2 use only the digits 0, 2, 5 and 6.at n=21A136911
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 7.at n=59A136912
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 8.at n=30A136913
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 9.at n=30A136914
• Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=3A209808
• Number of (n+1)X5 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=1A209810
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=11A209814
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.at n=13A209814
• Minimal natural number (in decimal representation) with n prime substrings in base-3 representation (substrings with leading zeros are considered to be nonprime).at n=25A217303